/*
    * Copyright (C) 2007-2012 Argeo GmbH
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *         http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.argeo.slc.client.ui.dist.commands;
  
  import javax.jcr.Credentials;
  import javax.jcr.Node;
  import javax.jcr.Repository;
  import javax.jcr.RepositoryException;
  import javax.jcr.RepositoryFactory;
  import javax.jcr.Session;
  import javax.jcr.security.Privilege;
  
  import org.argeo.jcr.JcrUtils;
  import org.argeo.node.security.Keyring;
  import org.argeo.slc.SlcConstants;
  import org.argeo.slc.SlcException;
  import org.argeo.slc.client.ui.dist.DistPlugin;
  import org.argeo.slc.repo.RepoUtils;
  import org.eclipse.core.commands.AbstractHandler;
  import org.eclipse.core.commands.ExecutionEvent;
  import org.eclipse.core.commands.ExecutionException;
  import org.eclipse.jface.dialogs.MessageDialog;
  import org.eclipse.jface.resource.ImageDescriptor;
  
  /** Publish the current workspace by giving READ_ONLY rights to anonymous */
  public class PublishWorkspace extends AbstractHandler {
  	// private static final Log log = LogFactory.getLog(PublishWorkspace.class);
  
  	public final static String ID = DistPlugin.PLUGIN_ID + ".publishWorkspace";
  	public final static String DEFAULT_LABEL = "Make Public";
  	public final static ImageDescriptor DEFAULT_ICON = DistPlugin
  			.getImageDescriptor("icons/publish.gif");
  
  	public final static String PARAM_WORKSPACE_NAME = "workspaceName";
  	public final static String PARAM_TARGET_REPO_PATH = "targetRepoPath";
  
  	// DEPENDENCY INJECTION
  	private RepositoryFactory repositoryFactory;
  	private Keyring keyring;
  	private Repository nodeRepository;
  
  	private String publicRole = SlcConstants.USER_ANONYMOUS;
  
  	public Object execute(ExecutionEvent event) throws ExecutionException {
  		String targetRepoPath = event.getParameter(PARAM_TARGET_REPO_PATH);
  		String workspaceName = event.getParameter(PARAM_WORKSPACE_NAME);
  
  		Session nodeSession = null;
  		Session session = null;
  
  		try {
  			nodeSession = nodeRepository.login();
  			Node repoNode = nodeSession.getNode(targetRepoPath);
  			Repository repository = RepoUtils.getRepository(repositoryFactory,
  					keyring, repoNode);
  			Credentials credentials = RepoUtils.getRepositoryCredentials(
  					keyring, repoNode);
  
  			String msg = "Are you sure you want to publish this distribution: "
  					+ workspaceName + " ?";
  			boolean result = MessageDialog.openConfirm(DistPlugin.getDefault()
  					.getWorkbench().getDisplay().getActiveShell(),
  					"Confirm publication", msg);
  
  			if (result) {
  				session = repository.login(credentials, workspaceName);
  				JcrUtils.addPrivilege(session, "/", publicRole,
  						Privilege.JCR_READ);
  				session.save();
  				JcrUtils.logoutQuietly(session);
  				// CommandHelpers.callCommand(RefreshDistributionsView.ID);
  			}
  		} catch (RepositoryException re) {
  			throw new SlcException(
  					"Unexpected error while publishing workspace "
  							+ workspaceName, re);
  		} finally {
  			JcrUtils.logoutQuietly(session);
  			JcrUtils.logoutQuietly(nodeSession);
  		}
  		return null;
  	}
  
  	/* DEPENDENCY INJECTION */
  	public void setNodeRepository(Repository nodeRepository) {
  		this.nodeRepository = nodeRepository;
 	}
 
 	public void setRepositoryFactory(RepositoryFactory repositoryFactory) {
 		this.repositoryFactory = repositoryFactory;
 	}
 
 	public void setKeyring(Keyring keyring) {
 		this.keyring = keyring;
 	}
 }